<template>
  <div>
    <div class="tools-div">
      <el-button type="success" size="small" @click="handleShowAddSpec">
        添 加
      </el-button>
    </div>

    <el-table :data="list" style="width: 100%">
      <el-table-column prop="specName" label="规格名称" />
      <el-table-column label="规格值" #default="scope">
        <div
          v-for="(item1, index1) in scope.row.specValue"
          :key="index1"
          style="padding: 5px; margin: 0;width: 100%;"
        >
          {{ item1.key }}：
          <span
            v-for="(item2, index2) in item1.valueList"
            :key="index2"
            class="div-atrr"
          >
            {{ item2 }}
          </span>
        </div>
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column label="操作" align="center" width="200" #default="scope">
        <el-button
          type="primary"
          size="small"
          @click="handleShowEditDialog(scope.row)"
        >
          修改
        </el-button>
        <el-button type="danger" size="small" @click="handleDelete(scope.row)">
          删除
        </el-button>
      </el-table-column>
    </el-table>

    <el-pagination
      v-model:current-page="pageNum"
      v-model:page-size="pageSize"
      :page-sizes="[1, 2, 3, 4, 5]"
      layout="total, sizes, prev, pager, next"
      :total="total"
      @size-change="fetchdata"
      @current-change="fetchdata"
    />
    <!--添加规格的对话框-->
    <div>
      <el-dialog v-model="dialogVisible" title="添加或修改" width="40%">
        <el-form label-width="120px">
          <el-form-item label="规格名称">
            <el-input v-model="productSpec.specName" />
          </el-form-item>
          <el-form-item>
            <el-button
              size="default"
              type="success"
              @click="productSpec.specValue.push({})"
            >
              添加新规格
            </el-button>
          </el-form-item>
          <el-form-item
            label=""
            v-for="(item, index) in productSpec.specValue"
            :key="index"
          >
            <el-row>
              <el-col :span="10">
                <el-input
                  v-model="item.key"
                  placeholder="规格"
                  style="width: 90%;"
                />
              </el-col>
              <el-col :span="10">
                <el-input
                  v-model="item.valueList"
                  placeholder="规格值(如:白色,红色)"
                  style="width: 90%;"
                />
              </el-col>
              <el-col :span="4">
                <el-button
                  size="default"
                  type="danger"
                  @click="productSpec.specValue.splice(index, 1)"
                >
                  删除
                </el-button>
              </el-col>
            </el-row>
          </el-form-item>
          <el-form-item align="right">
            <el-button type="primary" @click="handleSaveOrUpdate">
              提交
            </el-button>
            <el-button @click="dialogVisible = false">取消</el-button>
          </el-form-item>
        </el-form>
      </el-dialog>
    </div>
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import {
  GetPage,
  DeleteById,
  SaveProductSpec,
  UpdateProductSpec,
} from '@/api/productSpec'
import { ElMessage, ElMessageBox } from 'element-plus'
//============新增/更新 规格
let dialogVisible = ref(false)
let productSpec = ref({
  specName: '',
  specValue: [],
})
//点击添加弹出对话框
const handleShowAddSpec = () => {
  productSpec.value = {
    specName: '',
    specValue: [],
  }
  dialogVisible.value = true
}
//更新按钮事件函数，弹出更新的对话框
const handleShowEditDialog = row => {
  productSpec.value = row
  dialogVisible.value = true
}
//提交新增请求
const handleSave = async () => {
  if (!productSpec.value.specName || !productSpec.value.specValue) {
    ElMessage.warning('请输入商品规格数据')
    return
  }
  // 需要将productSpec.value.specValue转换成json字符串提交到后端，通过clone一个新的对象进行实现
  const productSpecClone = JSON.parse(JSON.stringify(productSpec.value))

  // 将productSpecClone.specValue.valueList转换成数组，因为后端需要的数组格式的数据[{"key":"内存","valueList":["8G","18G","32G"]}]
  // v-model绑定的数据模型为字符串
  productSpecClone.specValue.forEach(item => {
    item.valueList = item.valueList.split(',')
  })
  productSpecClone.specValue = JSON.stringify(productSpecClone.specValue)

  console.log(productSpecClone)

  // 提交表单
  await SaveProductSpec(productSpecClone)

  dialogVisible.value = false
  ElMessage.success('操作成功')
  fetchdata()
}
//提交更新请求
const handleUpdate = async () => {
  // 需要将productSpec.value.specValue转换成json字符串提交到后端，通过clone一个新的对象进行实现
  const productSpecClone = JSON.parse(JSON.stringify(productSpec.value))

  // 将productSpecClone.specValue.valueList转换成数组，因为后端需要的数组格式的数据[{"key":"内存","valueList":["8G","18G","32G"]}]
  // v-model绑定的数据模型为字符串
  productSpecClone.specValue.forEach(item => {
    console.log(typeof item.valueList)
    if (typeof item.valueList === 'string') {
      // 针对规格数据修改完毕以后数据类型有可能会变成string，针对string类型的数据将其转换成数组
      item.valueList = item.valueList.split(',')
    }
  })
  productSpecClone.specValue = JSON.stringify(productSpecClone.specValue)

  // 提交表单
  await UpdateProductSpec(productSpecClone)

  dialogVisible.value = false
  ElMessage.success('操作成功')
  fetchdata()
}
//提交按钮新增或更新
const handleSaveOrUpdate = () => {
  if (productSpec.value.id) {
    //更新
    handleUpdate()
  } else {
    //新增
    handleSave()
  }
}
//============新增/更新 规格
//------分页数据
let pageNum = ref(1)
let pageSize = ref(3)
const total = ref(0)

//-------分页数据=====
onMounted(() => {
  fetchdata()
})
const fetchdata = async () => {
  const { data } = await GetPage(pageNum.value, pageSize.value)
  if (data.list) {
    data.list.forEach(spec => {
      spec.specValue = JSON.parse(spec.specValue)
    })
  }

  list.value = data.list
  total.value = data.total
}
//删除按钮的事件函数
const handleDelete = row => {
  ElMessageBox.confirm(`您确认删除【${row.specName}】吗?`, '是否继续', {
    confirmButtonText: '确认',
    cancelButtonText: '取消',
    type: 'warning',
  })
    .then(async () => {
      //异步请求删除id对应的角色
      const { code, message } = await DeleteById(row.id)
      if (+code === 200) {
        ElMessage.success('删除成功')
        fetchdata()
      } else {
        ElMessage.error(message)
      }
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '取消删除',
      })
    })
}
// 表格数据模型
const list = ref([
  {
    id: 2,
    createTime: '2023-05-06 12:56:08',
    specName: '笔记本电脑',
    specValue: [{ key: '内存', valueList: ['8G', '18G', '32G'] }],
  },
  {
    id: 1,
    createTime: '2023-05-06 12:40:22',
    specName: '小米手机',
    specValue: [
      { key: '颜色', valueList: ['白色', '红色', '黑色'] },
      { key: '内存', valueList: ['8G', '18G'] },
    ],
  },
])
</script>

<style scoped>
.tools-div {
  margin: 10px 0;
  padding: 10px;
  border: 1px solid #ebeef5;
  border-radius: 3px;
  background-color: #fff;
}

.div-atrr {
  padding: 5px 10px;
  margin: 0 10px;
  background-color: powderblue;
  border-radius: 10px;
}
</style>
